ARMY can't keep calm as BTS' Jungkook sports ponytail at Calvin Klein's pop-up store in Seoul

Jeon Jungkook of BTS turned heads when he went to the Seoul Calvin Klein Pop-Up Store. The internet has been buzzing with excitement ever since the artist made a surprise visit to the store.

The videos that showed Jungkook looking immaculate and even sporting a ponytail after growing out his hair sparked even more excitement among BTS fans, or "ARMY." 

The fans started sharing a lot of photos of the star at the event and trending his name on social media.

The BTS star was named as the global brand ambassador for Calvin Klein Jeans and Calvin Klein Underwear. 

Apparently, the pop-up store was for promoting BLACKPINK's Jennie latest brand collection. Recently, it was revealed that Jennie will launch her own clothing line for the company, complete with items that precisely reflected her personal style. 

Meanwhile, during the event, the attentive audience heard a "special song" before the start of a new beat. They recognised Jennie's voice as she sang along to the unreleased song, and also The Weeknd's seductive voice joined in.